Rotor blade for wind power plants

Abstract

A rotor blade for a wind power plant, comprising an upper shell and a lower shell which are joined to each other and have a trailing edge each, and which has a profile extending in the direction of flow and, at its rear end, exhibiting a profile trailing edge of a thickness, wherein the trailing edges of the upper and lower shells are spaced apart in at least one area of the rotor blade such that the thickness of the profile trailing edge is defined by one of the shells.

1 . A rotor blade for a wind power plant, comprising an upper shell ( 1 ) and a lower shell ( 6 ) which are joined to each other and have a trailing edge ( 4 ,  9 ) each, and which has a profile extending in the direction of flow and, at its rear end, exhibiting a profile trailing edge ( 11 ) of a thickness, characterized in that the trailing edges ( 4 ,  9 ) of the upper and lower shells ( 1 ,  6 ) are spaced apart in at least one area of the rotor blade such that the thickness of the profile trailing edge ( 1 ) is defined by one of the shells.  
   
   
       2 . The rotor blade for a wind power plant, comprising an upper shell ( 1 ) and a lower shell ( 6 ) which are joined to each other and have a trailing edge ( 4 ,  9 ) each, and which has a profile extending in the direction of flow and, at its rear end, exhibiting a profile trailing edge ( 11 ) of a thickness, characterized in that another, strip-shaped component is provided which defines the thickness of the profile trailing edge ( 11 ) wherein the trailing edges ( 4 ,  9 ) of the upper and lower shells ( 1 ,  6 ) are spaced apart such as to be at a different distance from the profile trailing edge ( 11 ).  
   
   
       3 . The rotor blade according to  claim 1 , characterized in that the thickness of the profile trailing edge ( 11 ) is defined by the upper shell ( 1 ).  
   
   
       4 . The rotor blade according to  claim 2 , characterized in that the trailing edge ( 9 ) of the lower shell ( 6 ) is at a larger distance from the profile trailing edge ( 11 ) than is the trailing edge ( 4 ) of the upper shell.  
   
   
       5 . The rotor blade according to  claim 1 , characterized in that a step is scraped down in the area of the trailing edge of that shell which does not define the thickness of the profile trailing edge.  
   
   
       6 . The rotor blade according to  claim 2 , characterized in that the step which forms in the area of the trailing edge ( 4 ) of the upper shell ( 1 ) and/or trailing edge ( 9 ) of the lower shell ( 6 ) is scraped down.  
   
   
       7 . The rotor blade according to  claim 1 , characterized in that the trailing edge of that shell which does not define the profile trailing edge ( 11 ) is beveled such as to bear flat on the inside of the other shell.